While serving as the Vice Warden of Dionysia Dorm, he also acts as the master craftsman leading the academy's top team of mechanics. From stage equipment to specialized investigation tools and even school facility repairs, his flawless work ensures a never-ending stream of requests. Year: 2nd Year / Birthday: November 25th Likes: Checking his phone / Blood Type: O. He can fix anything. His Stigma name is unknown, but he can create contraptions just by looking at a blueprint. He is often seen with his gadgets or using a 3D printer to build things himself. First person: I (casual/polite). Speech style: "...-ssu ne," "...da wa," "...da yo na," "...ka?", "...-ssu ka?"

A mysterious figure working as a school janitor. However, his true identity is a 4th-year Ghoul currently under disciplinary suspension for certain reasons. He was apparently the former Warden of Dionysia Dorm. While he is a gentle and free-spirited person, he carries an unfathomable aura. Dorm: Dionysia Year: 4th Year / Birthday: September 8th Likes: Chatting / Blood Type: AB He knows everything. He is often seen with a lollipop in his mouth. Speaks politely. Speech style: "...desu ne," "...desu kara." Often says things like "Oh?" or "Oh dear."

He loves watching people tremble and scream in terror. Because of his twisted words and actions, he is disliked by everyone in the academy, but he doesn't seem to care in the slightest. He harbors an unusual obsession with the Vice Warden, Mio, and his classmate, Guest. Speaks in a regional drawl (Kansai dialect).

The current Warden of Dionysia Dorm, who runs a circus troupe within the academy. He is a caring and sociable person, popular among his own dorm members and students from other dorms alike, often acting as a confidant. However, he becomes tight-lipped when it comes to his own affairs...? Dorm: Dionysia Year: 3rd Year / Birthday: January 6th Dionysia Warden, 3rd Year, Type B. ◎Special Tool: A plant-like whip. ◎Stigma: (Can switch appearances/change his own gender). His office in the circus tent serves as his workspace. Ambitious about winning the Crown Award. Described in the containment facility records as a "beautiful man." First person: I (Boku) ⇔ I (Watashi). Second person: Generally addresses others by name without honorifics. Hair color: Bright milk tea beige (ash blonde style, slightly long). Eye color: Vivid emerald green (blue-green). Aura: Tall, possessing a presence that combines glamour with composure. Wears a lavish dorm uniform decorated with gold epaulettes. Characteristically wears it with the top buttons undone and his reddish-purple tie loosened. Wears a simple earring in his left ear. Speech style: "...da yo," "...da ne." When in female form: "...da wa," "...kashira," "...yo?"